The Northwestern 33 peanut is fairly common and easy to find. They came in several colors but some are much easier to find than others. Red and green are by far the most common while white, blue, and yellow are hard to find but not impossible. Orange, black, brown, and tan are by far the hardest to come by.

One thing to be careful of is the fact that the red 33 peanut is not a true red. You could mistake a faded red for an orange if you have never seen a true orange. The difference is obvious if you sit them side-by-side, the orange is a true orange while the red is more like a 90% ripe tomato.